Logging-bunk.



G. T. EAID.

LOGGING BUNK;

APPLICATION FILED DEC. 16, 1913.

Patented Oct. 6, 1914.

WITNESSES: dad m THE NORM/b PAIFRS c0 7 PHn'm Lin/0,, \VAb/HNQIUN. I) c UNITED STATES PATENT OFFICE.

CLAYTON 'I'. EAID, 0F PORTLAND, OREGON, ASSIGNOR O'E ONE-THIRD T0 THOMAS H. GAVAN, 0F CAMAS, WASHINGTON.

LOGGING-BUNK.

Specification of Letters Patent.

Patented Oct. 6, 1914.

To all 107mm it may c0nccrn:

lie it known that I, CLAYTON .L. EAID, a

citizen of the United States of America, residing at Portland, in the county of Multnoinah, in the State'of Oregon, have invented a certain new and useful Logging- Bunlc, of which the following is a specification, reference being had to the accompanying drawing.

My invention, relating to devices for safely confining loads of log" on a flat car for ransportation and for facilitating the loading and unloading of the same, has for its object the production of certain improve ments in such devices whereby the expense of manufacture is reduced, the strength and endurance of the article is augmented, and the facility and convenience of its operation in service are increased.

hat constitutes my invention will be hereinafter specified in detail and succinctly set forth in the appended claims.

In the accompanying drawing which constitutes a part of this specification, Figure I is a side elevation of one member of a preferred form of embodiment of my invention, showing, in full lines, both blocks in the log-engaging position, and showing, in dotted lines, one of them in the releasing position. Fig. II is aside elevation of the bed-piece shown in Fig. I stripped of its log-engaging mechanism. Fig. III is section on the line IIIIII of Fig. I looking downwardly, and showing both blocks depressed. Fig. IV is a section on line IVIV on F I looking from right to left, with one looking lever detached, the handle of the other cut away, and one leg of the crutch-block broken away, the several omissions being made to lend clearness to the view. Fig; V is a perspective view of the locking-lever-dctent detached. Fig. VI is a side elevation of a bunk-bed-piece and modified form of block-lock. Only one of the two blocks, used in practice, is shown. Fig. VII is a detail view of a further modification of block-lock.

Referring to the numerals on the drawing, 1 indicates a bed-piece, which, in practice, carries a pair of blocks 2 and 3, that assemblage of parts constituting one member of what is known in the logging art as a bunk. In practice a flat car is provided crosswise with two 01 more such members, a

pair being sufficient to carry a load of logs, extending lengthwise of the car, between them. While the blocks 2 and 3 are in the engaging positions, as shown in full lines in Fig. I, the logs are held by the blocks securely in place upon the bed pieces of the bunk. In order to unload them, the car is preferably inclined to one side or the other, when the block on the lower end of the bed piece being depressed, as shown in dotted lines in Fig. I, the logs roll by gravity off the bunk.

For various reasons, I prefer to make each bed-piece a single member and prefersimple and effectual mechanism for holding the blocks in log=engaging position.

lVith the proviso that in respect to the range of adaptability of certain features, I do not limit myself to the use of the single form of bed piece, I proceed to specify my invention in its preferred form of embodiment, as including the bed piece 1, consisting of a section of T rail. Accordingly, each,

block is preferably a crutch-block, that is, it is bifurcated and straddles the tread 4. Each block, preferably, has a toe 5, a heel 6, and a pair-of legs 7 and 8, the latter, by preference, provided, respectively, with hubs 9 and 10, apertured to receive and iold a pin 11. .The pin 11 penetrates a suitable aperture provided for it in the web 12 of the rail or bed-piece 1. The aperture in the web for the accommodation of the pin 11 should be so disposed or extended or so disposedand extended as to permit and effect the setting of the block which carries the said pin in either of its two positions, namely its logengaging position, or briefly, its engaging position shown in full lines in Fig. I of the drawing, and its depressed position shown in dotted lines therein. In such capacity the aperture-defining walls of the web 12 and the cooperating pin 11 constitute a preferred example of blocksetting-mechanism. The aperture shown in cup ging position; but the entering of the pin into pocket 16 permits the block to slide along the tread 4t and drop to the depressed position shown in dotted lines in Fig. l. The results named are due chiefly to the :tact that the pocket 15 being disposed transversily to the web 12, the walls of said pocket interpose against pin 11 to restrict the movement of the block, while the pocket 16, by reason of its longitudinal disposition with respect to the web, not only permits movement of the block as described longitudinally thereof, but also by reason of its location and extent, or both, ultimately permits the block, turning upon its pin 11 as a pivot, to drop over the end of the bedpiece. In order to efiiect a close juxtaposition between the blocks and their bed-piece when the former are depressed to the position referred to as shown in dotted lines in Fig. 1, I prefer to shape the cross head 11' of the crutch-block in the form of an arc struck from the center of its pin 11 as its center.

lly reason 01 the construction specified, the too 5 of each block presents a sharp logengaging edge, when the pin 11 is entered into the pocket 15, while the heel affords at the same time a stable support to the block and a fulcrum by which stress upon the toe laid by the weight of a log thereon tends to tilt the block and to preserve engagement between the pin 11 and pocket 15 and so to prevent accidental displacement of a block in service. It is partly because of the fulcrum effect just described which the heel assumes in practice that I dispose,

as a matter of preference, the pocket 15 upwardly from the pocket 16, but it is also because such disposition lends itself to a simple, and for that reason preferred, form of block-lock or block-locking mechanism.

Any member, means or mechanism which will serve to produce the effect of confining the pin 11 of a block in its pocket 15 may constitute a bloclzloch, but inasmuch as it is a lowermost blocl; that is, as already eX plainod, the one to be depressed for unloading purposes, I prefer to make each block-lock operative, more particularly for release oil. a load, from the end of its bedpic .e opposite to that which carries the block controlled by the block-lock contem plated. 1 therefore prefer to employ for each block an extended locking-lever 19 so combined with the bed-piece 1 and the block as to serve to confine the block-pin 11 in its pocket 15 or to release it therefrom at will, as by manipulation of a lever-handle 20, disposed at the end of the lever 19 that is remote from its connection with pin 11. To that end, the lever 19 is fulcrumed nearer its block-engaging end to the bed-piece 1. A fulcrum may be atlordcd by a projection 21 that works against the base 22 of the bedpiece. A projection 3 opposite the projection 21 may be provided to work under the tread 1 and so limit the rocking motion of the lever. This form of lever appears in the illustration shown in Figs. I, Hi and IV. The opening between the projections 21 and 23 shown in Fig. I has no functional significance.

The type of lever under consideration works with a rocking motion on its fulcrum 21 and its short arm is pivotally connected with the pin 11 of its block, as indicated at 25. Movement of the lover is imparted to it by the handle 20, and is made subject to the limitations imposed by a detent 2G. '1 he detent 26 may be a member attached to the web 12 swf .ging, as on a hub 2'7, from a. pin 28, in the path of the long arm of the lever 19. It is preferably provided with a cheeleplate which works alongside the lever 19 and holds it in operative juxtapo sition to the web 12. To accommodate the lever 19, the hub 10 oi each blo is of reduced transverse extent as compared. with hub 9, and its leg 8 is also provided preferably with a spacing boss 30, which working against the face of the web serves to relieve any tendency of the bearings about its pin 11 to pinch. It also cooperates with its correlated hub 9 to engage the tread 1 on opposite sides of the web 12 and so, by

reason of the tilting action of the block upon its heel 6, to take off strain from the pin 11 under stress of load in service.

Instead of the lever 19, as described, and its detent, a lever 31 as shown in Fig. VI may be employed. T he lever 31 is identical in function with the lever 19, which it also resembles in shape, and it is also, like he lever 19, made to operate by a partially longitudinal as well as a rocking movement. it is therefore provided with a loose pivotal connection with the pin 11, as by a longitudinally slotted. head 32, and with av like connection with the web 12 of the bed-piece, as by a stud 33 working in slot 34. A stud projecting from the web across the path of swinging movement of the long arm of the lever, may, by rotative and endwise movement of the lever, be made to serve as adetent to hold or release the lever at will, The loclzinglever may be, if preferred, otherwise modified and secured pivotally to the web as shown in Fig. VII, wherein it is indicated by the numeral 35. lit is pivoted, as indicated at 36, to a stud projecting from the web 12, and is provided with an open mouth defined by a projecting lower jaw 37 and a retreating upper jaw 38, for engagement and disengagement of the pin 11. In connection with a lockinglever 35, a detent similar to detent 26 may be used. Any block-lock or preferred locking-lever, with its appropriate detent, may be used to constitute block-locking mechanism as called for in the appended claims.

The following is a brief description of the mode of operation of my invention. In practice a flat car is provided with a desired number of my bed-pieces, equipped, respectively, with their blocks and block-locks, whereof each pair constitutes, according to the terminology herein employed, a bunk. This point it is well to note, because the term bunk is used sometimes with uncertain latitude in the art. In the loading and unloading operation, a car is usually inclined or dipped toward the side on which the load is to be received or discharged, and the blocks on that side are depressed to the position shown in dotted lines in Fig. I. In the preparation for discharge of a loaded car this depression of the blocks is accomplished by manipulation of the proper locking-lever by aid of its handle 20. If, for example, the locking-lever is of the type 19, the operator, relieving it of engagement by the detent 26, lifts upon the handle 20. In so doing, he depresses the short end of the lever and withdraws the pin 11 from the pocket 15 to the pocket 16, into which the pin is not only forced to enter, but toward which it is urged by the lateral thrust against the blocks of the load on the bunk. Consequently, a released block tends, by reason of entry of its pin 11 into its pocket 16, to slide upon the tread l toward the end of its bed-piece till its cross-head 17, whereon the block slides, clears the bed-piece and its legs 7 and 8 drop and rest upon the firmly supporting base 22 of the bed-piece. lVith the type of locking-lever 19, the drop of a block may be aided by thrust of the lever, and likewise to a certain extent, but

not so positively perhaps, in respect to other types of locking-lever.

I distinctly disclaim any intention to restrict the scope of my invention, as herein set forth, to mere details of construction, and have already indicated certain modifications thereof as comprehended therein. It may he tell to add, for the sake of better protection, that the relative adjustment of the blocks, is obtained by the cooperation of certain male and female members, towit, the pin 11 of the blocks and apertures, 1516, in the web 12, and that the same objects are equally attainable through transposition of the parts. In other words, a construction comprising pockets in the legs 7 and 8 of the block and a pin in the web 12 is regarded as corollary to the constructionshown and described.

An important feature of my invention is found in the directconnection between the locking-lever, 19 for example, and its block, from which both economy of construction and facility of operation result. Moreover, by reason of that direct connection, in combination with the fulcruming of the block upon its heel 6, and of the lever at 21, for example, each block and lever, hinged together as they are by the pin 11, constitute a toggle lever with the advantage of power so obtained for operating the block through manipulation of its lever.

' Within the art above referred to, what I claim is:

1. The combination with a bed-piece comprising a web, of crutch blocks, each straddling the web, and means comprehended within the web and blocks for adjustably securing the blocks to the web, respectively.

2. The combination with a bed-piece consisting of a single member, of blocks adj ustable thereon for the purpose specified, and means comprehended within the web and blocks of securing them in their respective adj ustments.

3. The combination with a bed-piece comprising a web, and crutch-blocks straddling the web, of means of adjustable connection between the web and blocks, respectively, comprising an elongated aperture and a pin col-relatively disposed between the blocks and web.

at. The comb-ination'with a bed-piece comprising a web, and crutch-blocks straddling the web, of means of adjustable connection between the web and each block comprising an aperture having horizontally and transversely disposed portions in the web, and a pin extending from leg to leg of the block through said aperture. 1 v

5. The combination with a bed-piece and blocks, of means comprehended within the web and blocks for adjustably securing each block to the bed-piece comprising a correlative pin and aperture connection.

6. The combination with a bed-piece comprising a web, and crutch-blocks straddling the web, of means for adjustably securing the blocks to the bed-piece, said means being such as to confine the blocks in log-engaging position upon the. web or to permit them to drop over the end thereof as desired.

7. The combination with a bed-piece, comprising a web, and crutch-blocks, each having a cross-head riding on the web, of means comprehended within the web and blocks for adjustably securing each block to the web. 1

8. The combination with a bed-piece, comprising a web, and crutch-blocks, each having a cross-head riding on the web, of means for adj ustably securing each block to'the ns bring so dieposedas to perl with a hed-piece co1n- {S riding on the web,

cl compre .cd within the web and .4- andv disengagnig the lJ 5( l-1)1QCG at will.

'01 with a bed-piece ach hloel" to the bedation with bed-piece web, and crutch-blocks stradupon the web, each block toe and with a h el to ll d'tiei. o the means last named .ch block to the bed-piece and the w t of a load thereon. he cmnbimition with a bedpiece and lilsagl-ep-s slidahle thereon, whereby the ht ol :1 lead on the lJ(,l-PlQ-C8 tends to the l li30lf-3 en the lied-piece, of means tor adjnstahly securing; the blocks to the bed-pieces and a lriltielt-leel-z for each block ads pted to cennterzmt and prevent said tenderrata 7 co: ibinat-ien with a hed-piece and 1. out nieans tor adytstahiy block to the bedqnece, said to n3 urged toward operative engagethe weight et a had on the bed- T i. e

l-l, combination with a bed-piece protitled with a web, and crutch-blocks t tel-eon. ear 1 bloc-l: having a cross head. a toe and a heel, of an aperture for each block having d transversely disposed portie! e weh, and a pin extending from leg to leg each hl el; through one of said 1 iertnres. whci Y weight of a load against the oe of each block tends to cause it to tilt noon its heel and to urge ope *ative engagement between its pi... and the transversely df acd portion of the pinapertnre and so secure the b. cell in place.

the block over the end of l i the blocks and the bed-piece 15. The combination with a bed-piece and ilting blocks adjus'ahle to different posiions thereon of means for engagement of operative irongh the tilting action of the blocks.

16. Tee combination with a lied-piece and tilting blocks adjustable to d'i'li'eient positions thereon, of means for ei'igagenient oi the blocks and the bed-piece operative through the tilting action of the blocks, and a blocleloclz for each block.

17. llhe combination with a bed-piece and pivoted thereon, of block setting blocks in achanisin and a block-lock.

o. he combination with a bed-piece and bloclts pivoted h reon, of block setting u b mechanism and a block-lock, said hlo airlock comprising a lccl'ing-lever and a detent.

19. The col'nhinaoion with a bed-piece and blocks pivoted thereon, of block setting mechanism and a block-lock. said block-lock comprising a longitmlinally movable r0cl; ing lever pivoted to the block and a detent.

20. The combination with a bed-piecc and hleelss pivoted thereon, of block setting mechanism and a hlocleloelr, said block-lock comprising a longitmilinally nionhle rocking lever pivoted to the block and a movable detent.

$21. '1 l combination with a l ed-piece.and adjustable block thereon, of a block-lock wiprising a lever and (let 1 said lever tulcrnined on the bed-piece and hav- 5; operative connection with the block.

The ctmibination with a bed-piece and hlocl: thereon, of a block actuating e er tfnlcrinned on the hed-piece and havinnnediate co inccticn with the block. 21-3. The combination with a bed-piece, of ao cc; fnlerinne l to the he'd-piece and a. lever :tnlcrmned on the bed-piece said block ind lever being hinged together with toggle eer effect.

In testimony whereof, I have hereunto set my hand in the presence oil two subscribing witnesses.

copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, 1). 0. 

